Strip-blocking mechanism



A. SUNDH.

STRIP BLOCKING MECHANISM.

APPLICATION FILED DEC-27,1917.

1,326,990. Patented Jan. 6,1920.

4 SHEETS-SHEET I.

wue'ntoz 5% 4 fitter/1421 A. SUNDH.

STRIP BLOGKING MECHANISM.

APPLICATION FILED DEC. 27, 1917.

1,326,990. Patented Jan. 6, 1920. m 4 SHEETS-SHEET 2.

INVENTOR Q BY M [Q W f omvn A. SUNDH.

STRIP BLOCKING MECHANISM.

APPLICATION FILED 050.27.1917.

1 ,326,990, Patented Jan. 6, 1920.

4 SHEETSSHEET 3.

M 'IG 6 IN VEN TOR A. SUNDH.

STRIP BLOCKING MECHANISM.

APPLICATION FILED DEC- 27,191?- 1,326,990. Patented Jan. 6, 1920.

4 SHEETS-$HEET 4- INVENTOR @J%@ze A TT DRIVE Y AUGUST SUNDH, OF HASTINGS-UPON-HUDSON, NEW YORK.

STRIP-:IBLOCKING MECHANISM.

Specification of Letters Patent.

Patented J anJfi, 1920.

Application filed December 27, 1917. Serial No. 209,029.

To all whom it may concern:

Be it known that I, AUGUST SUNDH, a citizen of the United States, residing at Hastings-upon-Hudson, Westchester county, State of New York, have invented. certain new and useful Improvements in Strip- Blocking Mechanism, of which the following is a specification.

This invention relates to an improvement in blocking mechanism for strip mills, wherein the strips after passing through the mill are fed to the present apparatus and coiled thereon. In general the apparatus of the present invention relates to machines of the type disclosed in my Patent No. 1,237,575 of August 21st, 1917, the novelty of the present invention residing more particularly in the construction of the winding drum or blocktogether with the transmission interposed between the drum and the source of power for the machine.

In general the present invention comprises a sectional winding drum or block mounted on ashaft adapted to be driven from any suitable source of power, here shown connected to a counter-shaft by. means of a belt, through fluid clutch mechanism, together with reduction gearing, all mounted in alinement with the block. The connection of the shaft'carrying the block to the driving element is, controlled by means of an electro-magn-etic clutch by means of which the driving element may be run continuously andthe winding block stopped and started at will independently thereof. A gear forming part of the electromagnetic clutch meshes with an elongated gear which is driven by a belt connected to a counter-shaft. The machine, as a unit, is mounted on a bed and is adapted to be moved longitudinally thereof to adjust the guide table used in con nection with machines of this type as may be found necessary from time to'tlme as the rolls of the strip will wear down without, however, disturbing the driving connection between the machine and the counter-shaft due to the gear connection just noted. The bed of the machine is provided with an areshaped lateral extension on which the machine may be swung when it is desired to have the machine as a unit moved away from in front of the strip mill rolls for the purpose of using a coiler or for grinding the rolls or for any other purpose. It is to be understood, of course, that the guide table herein illustrated may be of any suitable type, such as, for instance, disclosed. in my patent already referred to, having been shown dlagrammatically in the present application, as the Same forms no part of this invention. It is to be understood also that the particular type of controlling apparatus disclosed in this application is merely one of any number of types which may be used with equal advantage, and that I should, therefore, not be limited thereto.

Among the novel features of the present inventlon I wish to call particular attention to the novel construction of the interior of the winding block, wherein I have used what I may call a double toggle joint whereby a greater throw ofthe clamping members carried within the block may be obtained than possible by the use of the ordinary toggle joint heretofore used in winding blocks of the t pe used in strip blocking machines. The uid clutch used in the present invention is mounted on a hollow shaft surrounding the shaft on which the winding drum is mounted and is of such a nature that it may be set and preferably is set to allow the same to slip should the tension on the strips in being blocked tend to rise above a pre-determined degree. Attention is also directed to the magnetic clutch which isinterposed, between the driving element and the fluid clutch just referred to whereby the block -may be started and stopped as desired. For the purpose of speed reduction. between the driving element and the block I have mounted a set of gears on the block shaft and in alinement with the fluid clutch.

Other features of novelty and advantage will be noted as I proceed with my detailed description.

In the accompanying drawings,-

Figures 1 and 2 are-plan and side elevational views, respectively, of the present invention.

Fig. 3 is a sectional elevational view of the apparatus of Fig. 2.

Fig. 4; is a section through the winding block.

Fig. 5 is a part sectional plan showing the fluid clutch mechanism and speed reduction gearing. I

Fig. 6 is a view taken on the line aa of Fig. 7 is a view taken on the line bb of Fig. 3, and

Fig. 8 is an end elevation of the winding drum of Fig. 4. j

Referring to the drawings in detall, 1 designates a hollow shaft extending the entire length of the machine and journaled in suitable bearings; on the left-hand end of which is mounted and keyed thereto a member 4 carrying a ring 5 to which is secured a sectional cylindrical shell forming the winding surface for the strips to be blocked. This'shell comprises sections 6, 7 and 8. The section 7 is hinged to section '6 and section 8 is hinged to section 7. In this way the shell, as'a unit, is supported by the ring 5, while at the same time the shell may be collapsed when'it is desired to remove a completed coil of strip therefrom. Between the sections 6 and 8 aslot 9 extending longitudinally of the block and across its entire face is provided for the purpose of permltting the end of the advancing strip to enter to the interior of the shell to be clamped therein as will presently be described. The member 4 has a'projection 10 formed thereon, screw-threaded at its left-hand end as viewed in Fig. 4, for the purpose of receiving a magnet designated 11. A core 12 is provided'for the magnet 11 and is connected through a ring 13 anddouble toggle joints designated 14, 15 and 16, to a set of arms 17, carried within the winding drum. These arms are pivoted at 18 and, as will be seen from Fi s. 3 and 4, when the'magnet 11 is energize and draws in its core 12 the arms 17 will be moved outwardly (see Fig. 3) to clamp the strip between one of the arms and the interior of one of the sections of the shell forming the winding surface for the strips. By reason of this double toggle joint construction the arms 17 may be given a .greater throw with the same movement of the core 15 of the magnet than possible if a single toggle joint were used, as disclosed in my patent hereinbefore referred to. In order that the core 12 may be moved outwardly when the magnet 11 is deenergized to allow the shell sections to be collapsed for the purpose of removing the strip from the winding drum, I provide a sprii'ig 19. As the strips blocked in machines of this kind vary in thickness it may be desired to adjust the throw of the double toggle joints and to this end I have provided a nut 20 on the end of the core 12, which may be screwed either in or out to increase or diminish the throw of thearms 17 as desired. In order that the slot 9 in the winding drum may be brought into position to receive the end of the strip as it passes through the guiding mechanism designated 21 (see Fig. 12) I have rovided a hand-wheel 22, which is mounte rigidly v on the member 5, manipulation of Which will bring the slot 9 into desired position. The windings of the magnet 11 receive their current from a source of supply designated S and are controlled through a switch 23 operated by a hand lever 24.

For the purpose of driving the shaft 1 and thereby the winding drum which has just been described, I have provided fluid clutch mechanism illustrated in Fig. 3 and in detail in Fig. 7. This clutch comprises a ear 25 mounted on a hollow shaft 2 carrying the shaft 1 and secured to a housing within which are mounted fluid gears 26 and 27. 'Fluid is circulated within the clutch by way of orts 28 and 29, the circulation of the fluid eing controlled by a valve 30, which is set in the operation of the present device so as always to allow some slip, to prevent fracture of the strip in the blocking operation, for, as will be obvious, should the tension on the strip increase or tend to increase above that permitted by the setting of the clutch, the latter will slip, thereby preventing injury either to the machine or to the strip. The winding drum is driven from a counter-shaft 31 belted to the shaft carrying at its end an elongated gear 33. The

latter meshes with a gear 34 mounted on the end of a shaft 35 formin one core of van electro-magnet 36. A sha t 37 carrying'at its extreme left-hand end, as viewed in Fig. 3, a gear 38 in mesh with the hollow gear 25 of the fluid clutch mechanism already described, forms the other core of the magnet. The magnet receives current from the same source of supply as does the magnet of the winding drum and is controlled by means of a switch 39 operated by a lever 40. As will be seen from Figs. 1 and 3 the shafts 35 and 37 may be clutchedr together to rotate as a unit by closure of theswitch 39 to actuate the fluid clutch mechanism through the med1um of the gear 38 on the shaft 37 to drive the block. 1

To provide speed reduction between the driving element and the block an internally toothed gear 41 is mounted on the shaft 1 and keyed thereto (see Fig. Within this gear is a pair of gears 42 and 43 meshing with a pinion 44 mounted on the shaft 2, which, as already noted, is mounted on and in alinement with the shaft 1. The gears 42 and 43 are journale'd in bearings 45 and 46 forming a part of the frame of the machine. The speed of the shaft 1 relatively to that of the shaft 2 will, therefore, deplend on the ratio of the gears 42 and 43 to t e gear 41 and to the pinion 44.

The machine, as a unit, is mounted on a bed 47 which, in turn, is slidab-ly mounted on a bed 48 secured to the floor. Bolts 49 and 50 bolt the bed 47 to the bed 48-, but, by reason of slots 51 and 52 through which the bolts 49 and 50 are passed, the bed 47, and therefore the machine as a unit, may be moved longitudinally to adjust the guide table 21 relatively to the rolls of the-strip mill designated 53, as may be desired, but this adjustment by reason of the elongated gear 33 already referred to will not in any way affect the driving of the winding drum. In order that the machine may be moved from in front of the strip mill I have provided an arc-shaped lateral projection 54: on the bed 48, as shown in Fig. 1, whereby the whole machine may be moved about a pivot 55 at the rear end of the machine when it is desired to use a coiler instead of the winding machine, or when it is desired to 'true up the rolls of the strip mill, or for any other purpose.

The operation will now be apparent and is as follows The valve 30 controlling the fluid clutch is first of all set to provide the proper tension on the strips being blocked. The operator closes the switch 39 by means of the hand lever 40 to energize the winding of the clutch magnet 36, which will cause the countershaft 31 through the medium of its belt and the gears 33 and 34 to start up the shafts 1 and 2. The internal mechanism of the winding drum which comprises the magnet 11, core 12, and the arms 17, now rotates. The sectional shell comprising the sections 6, 7 and 8, having been previously moved into position through the medium of the hand-wheel 22 to bring the slot 9 into correct position, a strip may be fed into the strip mill and passin therethrough and into and through the guide 21, its end will enter the slot At this instant the operator closes the switch 23 controlling the magnet 11 within the winding drum. The latter will pull in its core 12 and through the double toggle mechanism 14, 15 and 16, will move the arms 17 outwardly toward the interior of the sections 6, 7 and 8 to clamp the strip securely to the shell. As soon as this point is reached the shell will rotate with the interior of the winding drum to coil up the strip. By reason of the reduction gearing already referred to the speed of the block at this time is much lower than that of the driving means. In setting the valve 30 controlling the fluid clutch, the fluid within the clutch is allowed to by-pass sufliciently to prevent too much tension being brought upon the strip during the blocking operation. If the strip should catch in passing through the guides for any reason whatsoever, this slippage in the clutchwill allow the winding drum to come to rest, while the driving means are still rotating.

It is to be understood that I do not limit myself to the specific details of construction rally-operated means for connecting the herein shown and described, as various changes may be made therein without departing from the spirit and scope of this invention.

What I claim as new and desire to secure by Letters Patent is 1. In strip blocking mechanism, the combination of a block, driving means therefor, a variable speed clutch, an electrically-operated means for connecting the driving means to the block through said clutch.

2. In strip blocking mechanism, the combination of a block, driving means therefor, a fluid clutch and electrically-operated means for connecting the driving means to the block through said clutch.

3. In strip blocking mechanism, the combination of a block, driving means therefor, a variable speed fluid clutch and electricallyoperated means for conne-ctin the driving means to the block through sald clutch.

4. In strip blocking mechanism, the combination of a block, driving means therefor, a fluid clutch and electro-magnetically-operated means connecting the driving means to the fluid clutch for driving the block.

5. In strip blockin mechanism, the combination of a block, di iving means therefor, a variable speed clutch and electro-magnetidriving means to the block through said clutch.

6. In strip blocking mechanism, the combination of a block, driving means therefor, a variable speed fluid clutch, and electromagnetically operated means for connecting the driving means to the block through said clutch. v

7. In strip blocking mechanism, the combination of a block, a shaft carrying the block, fluid clutch mechanism mounted on a shaft in alinement with the first-named shaft, driving means for the block, and electro-magnetically operated means for connecting the fluid clutch mechanism to the block driving means.

8. In strip blocking mechanism, the combination of a block, a shaft carrying the block, driving means for the block, and reduction gearing on a shaft in alinement with the" block carrying shaft for reducing the speed of the block relatively to that of the driving means.

9. In strip blocking mechanism, the combination of a block, driving means therefor, a clutch operatively connected to the block, an electrically operated means interposed between the driving means and the clutch for connecting the driving means to the block.

10. In strip blocking mechanism, the combination of a block, driving means therefor, and an electro-magnetically operated clutch interposed between the driving means and said block.

11. In strip blocking mechanism, the combination of a block, a shaft carrying the block, driving means therefor, a clutch for connecting the driving means to the block, reduction gearing between the clutch and block, the clutch and reduction gearing being'mounted on a shaft in alinement with the block carrying shaft. v

12. In strip blocking mechanism, the combination of a block, driving means therefor, a clutch for connecting the driving means to the block, reduction gearing independent of the clutch and between it and the block, said block, clutch and reduction gearing being mounted in alinement with each other.

13. In strip blocking mechanism, the combination of a block, driving means therefor, a clutch connected to the block, and an electrically-operated clutch interposed between the driving means and the first-named clutch. v

14. In strip blocking mechanism,the combination of a block, driving means therefor, and an electrically-operated clutch interposed'between the driving means and said block.

15. In strip blocking mechanism, the com bination of a block, driving means therefor, and means for operatively connecting the driving means to the block, comprising a gear driven by the driving means a gear meshing therewith and mounted on a shaft adapted to be electrically connected to the block.

16. In strip blocking mechanism, the combination of a block, driving means therefor, and, means for operatively connecting the driving means to the block, comprising 'a gear driven by the driving means, a gear meshing therewith and mounted on a shaft adapted by longitudinal movement to b connected to the block. a a

' 17. In strip blocking mechanism, the combination of a block, driving means therefor, a train of gearin connecting the driving means to the bloc and means for moving the machine bodily as a unit relatively to the driving means.

18. In strip blocking mechanism, the combination of a block, driving means therefor, means for operatively. connecting the driving means to the block, comprising a gear driven by the driving means, a gear mesh. ing therewith and adapted to bemoved longitudinally thereof, the last-named gear being mounted on .a shaft adapted to'be connected and disconnected from the block.

19. In strip blocking mechanism, the combination of a block, driving means therefor, an operative connection between the block and driving means whereby the machine may be moved longitudinally relatively to the driving means without disturbing the driving connection between the block and its driving means.

tively connected to the block and a movable core to the driving means to form a driving connection between the block and its driving means.

22. In strip blocking mechanism, the combination of a bed for the machine, driving means for the machine, means whereby the machine may be adjusted on its bed relatively to the driving means, and means operatively connecting the driving means to the machine and arranged to maintain itself in operative position independently of longitudinal movement of the machineon its bed.

23. In strip blocking mechanism, the combination of a bed for the machine, means for adjusting the machine on its bed, both longitudinally and laterally, a block, driving means therefor arranged to maintain itself in operative condition during longitudinal adjustment of the machine on its bed relatively to the driving means.

24. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a gear operatively connected to said shaft, a gear cooperating therewith, a shaft carrying the last-named gear, an electro-magnet, the last-named shaft forming a core therefor, and a second core for said magnet connected to the driving means and adapted to cooperate electrically with the first-named core to drive the block.

25. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a gear thereon, a gear-cooperating therewith, a shaft carrying the last-named gear, an electro-magnet, the last-named shaft forming a core therefor, a second core for said magnet geared to thedriving means and adapted to cooperate electrically with the first-named core to drive the block.

26. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a gear thereon, a gear cooperating therewith, a shaft carrying the'last-named gear, an electro-magnet, the last-namedshaft forming a core therefor, a second core for said electro-magnet, and a gear thereon meshing with the driving means and adapted to cooperate electrically with the first-named core to drive the block.

27. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a gear thereon, a

gear cooperating therewith, a shaft carrying the last-named gear, an electromagnet, the last-named shaft forming a core therefor, a second core for said electro-magnet, a gear carried by the driving means and operatively connected to the second-named core of the electro-magnet, said core being adapted to be moved longitudinally of the gear carried by the driving means to cause the block to be driven.

28. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a fiuid clutch on a shaft in alinement with said first-named shaft, and an electro-magnetic clutch, one core of which engages the fluid clutch for connecting the driving means to the block.

29. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carrying the block, a fluid clutch on a shaft in alinement with the first-named shaft, an electro-magnet having one core engaging the clutch and its other core operatively connected to the driving means Whereby the driving means may be connected to the block.

30. In strip blocking mechanism, the combination of a block, driving means therefor, a shaft carryin the block, a variable speed clutch on a shaft in alinement With the firstnamed shaft, an electro-magnet having one core engaging the clutch and its other operatively connected to the driving means for connecting the driving means to the block, and means for adjusting the clutch to vary the tension on the strip as desired.

In testimony whereof, I have signed my name to this specification.

AUGUST SUNDH. 

